Boiler



Aug. 22, 1933. c, w BRABBEE BOILER Filed Feb. 2, 1931 4 Sheets-Sheet l M A TTORNEY.

BOILER Filed Feb. 2, 1931 4 Sheets-Sheet 2 /N VE N TOR A ATTORNEY.

Aug. 22, 1933. c. w. BRABBEE 1,924,077

BOILER Filed Feb. 2, .1951 4 Sheets-Sheet 5 INVENTOR.

i5 ATTORNEY.

Aug. 22, 1933. c. w. BRABBEE BOILER Filed Feb. 2, 1931 4 Sheets-Sheet 4 v INVENTOR.

m, u u

. ATTORNEY.

Patented Aug. 22, 1933 BOILER Charles W. Brabbe, Bronxville, N. Y., assignor to American Radiator Company,

New York, N. Y.,

a (iorporation of New Jersey Application February 2,1931. Serial No. 512,924 '7 Claims. (ci iz z zzs) My invention relates to improvements in heating apparatus, and the same has for its object to provide a boiler for heating purposes which is simple in construction, efficient in operation, and convenient to manufacture.

' Further, said invention has for its object ,to provide a sectional boiler of the magazine type which will burn anthracite or, bituminous coal or coke, or mixtures thereof, as desired.

Further, said invention has for its object to provide a boiler in which means are provided Whereby the combustion chamber may be connected directly with the chimney or stack to facilitate the starting of the boiler.

Further, said invention has for its object to I provide a sectional, magazine boiler in which by% pass means are provided for short-circuiting the draft at the commencement of the firing operation.

Further, said invention has for its object to provide a boiler comprising a plurality of transverse sections each of which embodies a proportionate part of the ashpit, fuel receptacle, combustion chamber, magazine,.flue partsand air ducts.

-Further, said invention has for its object to provide a sectional boiler having a series of flues leading from the fuel receptacle and combustion chamber, and a plurality of collecting flues connecting the said fiues with the smoke outlet, and means whereby either one of said collecting flues may be simultaneously placed in communication with the smoke outlet andthe other closed to said smoke outlets.

Further, said invention has for its object to provide a boiler having a large fuel capacity, and

a comparatively small burning area whereby to insure, a long operating period without necessity for refueling.

Further, said invention has for its object to provide a sectional, magazine boiler in which the fuel magazine, combustion chamber, fuel receptacle and ashpit are arranged substantially to one side of a center line of the boiler, and flue portions to the other side of said line.

Other objects will in part be obvious and in part be pointed out hereinafter.

To the attainment of the aforesaid objects and ends my invention consists in the novel features of construction, and in the combination, connection, and arrangement of parts hereinafter more fully described and then pointed out in the claims.

In the accompanying drawings wherein like numerals of reference indicate like parts- Figure l is a front elevation showing one form of boiler constructed according to and embodying my said invention;

Fig. 2 is a back view;

Fig. 3 is a rear or inside faceview of the front section of the boiler;

Fig. 4 is a rear or inside face view section; v

Fig. 5 is a face view of an intermediate section;

Fig. 6 is an enlarged detail elevation partly in 35 section showing the construction and arrange-. ment'of the main and the short-circuiting dampers, and the, actuating means therefor, both dampers being shown in closed positions;

Fig. '7 is a top view of the parts shown in elevation at Fig. 6; I

Fig. 8 is a view similar to Fig. 6 showing the main damper open, and the short-circuiting damper closed; I

Fig. '9 isa top view of the parts shown in ele- 75, vation at Fig. 8. r f

Fig. 10 is a View similar to Figs. 6 and ,8,"showing both main and short-circuiting dampers in open position, and k Fig. 11 is a top view, partly in section of the parts shown in elevation at 'Fig. 10. V

v In said drawings l5'designates the boiler as a whole comprising a front section 16, a back sectionl'l, and a plurality of corresponding intermediate sectionsrlfl. The front section 16 is provided at about its central portion with an observation opening 19; below and to the left of said observation opening with two slicing openings 20,

20, and below said slicing openings with an ash pit opening 21. In the upper left hand corner 9 is providedfuel opening 22 communicating with the fuel magazine 23. Adjacent to the upper right hand side of the front section is provided a clean-out opening 24 and directly below] said clean-out opening Z iis provided a larger clean- 5 out opening 25, affording access to the flues.

The back section is provided adjacent to its upper left hand corner (as seen from the rear) with'a smoke outlet 26, and near the middle adjacent to the base with a cold air inlet 27 communicating with the ash pit. I v

The boiler proper, comprising the assembled of the back sections 16, 17,18, is whollyv enclosed in a sectional metal jacket 28 provided upon its inner side with insulating lining members 29.

Each intermediate section18- includes ,a peripheral water-way 30 and peripheral beads 31 upon each of its opposite surfaces which are adapted to registerwith corresponding beads of the contiguous sections to form close joints. Each 119 section 18 further includes a magazine portion which extends downwardly from the top of the boiler about the center thereof, and there merges with an enlarged portion forming in part a fuel receptacle and combustion chamber portion 34. The fuel receptacle 34 extends from one side of the boiler towards the opposite side thereof, and terminates at a point beyond the vertical center of the boiler. The fuel receptacle is provided with a grate 35 consisting of a plurality of bars 35 each one of which is pivotally mounted at its opposite ends within one of the intermediate sections 18 of the boiler. The front and back sections 16, 17, are provided on their inner sides with grate bar portions 35 registering the bars 35 Each grate bar 35 has a depending arm 36 adjacent to one of its ends, the alternate of which are connected to two bars 37, 37 whose forward ends extend through the front section of the boiler and are pivotally connected to shaking levers 38, 38 respectively, which have their lower ends pivotally connected to the body of the boiler and their upper ends 39, 39 free and adapted to detachably receive the end of a separate shaking arm, not shown. The space below the grate 35 constitutes the ash receptacle 40.

The portion of each intermediate section 18 between the right hand side thereof and the lefthand 'side of the fuel receptacle, combustion chambenand ash pit forms, adjacent to the top of the boiler, a steam dome member 41, and a revertible flue which, at its entrance portion 42 overhangs the fuel receptacle and combustion chamber. The right-hand wall 43 of the fuel receptacle and combustion chamber is formed by a tubular water-way 44 which extends from the base portion of the section, upwardly and thence angularly inwardly towards the lower end of a short tubular member 45 constituting the lower end of the inner wall of the fuel magazine 23 to which it is unitedby a smaller tubular portion 46 whereby to form between it and the corresponding tubular members 46 of the sections adjacent at each side a series of openings 42 for the hot gases and products of combustion. The flue space is further divided into a descending portion 48 and an ascending portion 48 by a depending tubular partition portion 49 which extends rearwardly and downwardly towards the lower transverse water way 48 constituting the base of the ash receptacle, and at its lower end said depending tubular partition portion 49 is connected by short tubular members 50 with the tubular water way 44 and with the vertical righthand peripheral water way 30 of the section, and similar short tubular members 51 serve to connect the same parts with the tubular partition member 49 about midway of its height.

The descending flue part 48 communicates at .its upper end with a longitudinal short-circuiting flue 52 which communicates at one end with the smoke outlet 26, and the ascending flue part 48 communicates with a similar collecting flue 52 which communicates at its corresponding end with the smoke outlet 26.

53 denotes a smoke hood which is bolted to the rear of the boiler over the smoke outlet 26 therein.

Within said smoke outlet 53 are pivotally mounted a large vertically-swinging damper 54 which substantially corresponds in outline with the longitudinal collecting flue 52 and a smaller vertically-swinging damper 54 which fits over the rear end of the longitudinal short-circuiting flue '52. The lower end of the damper 54 is provided with an ear 55 to receive the upper end of a pivot pin 56 secured in the bottom of the smoke hood 53, and the upper end of said damper is provided with a similar ear 56 in which is fixed the lower end of a shaft 57, whose upper end extends through an opening in the top of the smoke hood 53, and has fixed upon its projecting end an operating arm '58 having an upwardly projecting pin 59 at its free end adapted for engagement with a recess 60 in a reciprocatable bar 61 which has its opposite ends slidably mounted in bearings 62, 62 secured to the top of the smoke hood.

The smaller damper 54 has integrally formed shaft members 63 and 64 at its upper and lower ends which extend respectively through suitable openings in the top and bottom of the smoke hood 53. The upper or longer shaft member 63 is also provided at upper projecting end with a arm 65 having an upwardly projecting pin 66 at its free end adapted for engagement with a second recess 67 in the reciprocatable'bar 61.

The reciprocatable bar 61 is provided adjacent a the entrance end of each recess 60, 67 with a projection 68 which severally serve as cams to cause each of the pins 59, 66 onthe arms 53, 65 to be guided into its respective recess in the bar 61, when the latter is reciprocated.

The bar 61 is further provided between the recesses 60, '67 with a vertical aperture 63a to loosely receive a pin '70 fixed at the lower free end of an arm 71 whose other end is secured to the rear end of a shaft 72 extending through the boiler from the front to the back thereof. At the front of the boiler the forward end of the shaft 72 is provided with an operating handle 73 with which is associated an indicating plate 74 secured upon the front of the boiler, to indicate the several positions of the dampers 54 54.

The operation in general of the boiler will be largely obvious from the foregoing description. It is to be noted, however, that when first firing the cold boiler it is desirable that the fuel be ignited rapidly, and that the produced smoke and products of combustion shall find their way most easily and rapidly to the smoke outlet and stack.

To obtain this result the damper control handle 73 at the front of the boiler should be moved to the extreme left, thereby partially rotating the shaft 72, and the arm 71, secured to said shaft at the rear of the boiler to the right, as shown at Figs. 10 and 11, and at the same time shifting the bar 61 correspondingly in the same direc tion. In the course of said movement the bar operating the damper 54 to pass out of therecess 60 in said bar 61, and come into engagement with the inner edge of said and thereby rotate the arm 58 about forty-five degrees (45), and in so doing cause the damper 54 'to wholly open the outlet of the collecting flue 52 leading to the smoke hood 26, as seen at Fig. 16. As the bar 61 moves to the right, as just above described, the projection 63 on said bar will contact with the pin 660i the arm 65 flxed to the shaft 63 operating the short circuiting damper 54, and guide said pin 66 into the recess 6'? of said bar, and thereby partially rotate said shaft 63 and wholly open the short circuiting damper 54 controlling the short-circuiting flue 52, thus permitting the smoke and products of combustion to pass simultaneously from the short circuiting flue 52 directly into the smoke hood 26, and mingle with the gases and products of combustion entering the smoke hood from the short-circuiting flue 52, and thence pass therewith into the stack. When the fuel is fully ignited and burning properly, the handle '73 is moved to the extreme right, and the shaft 72 correspondingly rotated thereby causing the bar 61 to be moved to the left, as shown at Figs. 6 and 7, and the associated parts to function to close both the main damper 54 and the short circuiting damper 5%. By this movem nt of the bar 61 to the left the pin 66, of the 55 controlling the short circuiting damper 54, will be caused to pass out of its recess 67 in the bar 61, and ride upon the inner surface of said bar, and at the same time the projec'tion'flfl of the bar 61, will contact with the pin 59 of the arm 58 controlling the main damper 54 and cause said pin 59 to enter its recess 60 in the bar and cause said arm 58-to be carried to the left, thereby closing said main damper 54 and the short-circuiting damper 54, as shown at Figs. 6 and 7, and hold both of said dampers in their closed positions until the bar 61 and its operating parts are again actuated. c

When the main damper 5i and the short circuiting damper 54 are adjusted to their closed positions, as shown at Figs. 6 and 7, suflicient space will be left between the outlet end of the collecting flue 52, and the edges of the damper 54 to ailow for the escape of gases and products of combustion liberated by the fuel in the course of the normal operation of the boiler.

When it is necessary or desirable to open only the main damper 5% without opening the short circuiting damper 54, as, for example, when refueling the boilen'it merely requires the adjusting of the handle 73 to the vertical or intermediate position whereupon the damper 54 and the actuating parts therefor will assume the positions shown at Figs. 8 and 9, and permit of substantialiy all of the gases and products of combustion to pass through the collecting flue 52 smoke hood 26, and into the stack.

In this case no claim is made for the damper control mechanism herein shown and described,

as the same constitutes the subject matter of a divisional application flled July 21, 1933, Serial No. 681,423. I

Having thus described my said invention, what I claim and desire to secure by Letters Patent is:

1. A boiler comprising an ashpit, a fuel receptacle and combustion chamber, a smoke outlet, flues extending from said fuel receptacle and combustion chamber and each including a descending and an ascending portion, a plurality of parallel transverse collecting flues disposed in substantially the same horizontal plane; one of said flues extending across and communicating with the intakes of the descending portions of said flues, and the other of said collecting flues extending across and communicating with the outlets of the ascending portions of said flues, and means for placing said collecting flues in communication with said smoke outlet, substantially as specified.

2. A boiler comprising end sections and a plurality of intermediate sections; said intermediate sections and one of said end sections having a series of registering transverse openings therein forming a collecting flue, and having a second series of registering openings forming.

a short-circuiting flue communicating with said collecting flue, and said intermediate sections having registering openings forming a fuel magazine, a fuel receptacle and combustion cham- 1 her, and an ash pit, and a'series of passages extending from said fuel receptacle and combustion chamber to said short-circuiting 'flu'e, valve means associated with said short-circuiting flue and said collecting flue, and means for actuating said valve means, substantially as specified;

3. A boiler comprising end'sections and a plurality of intermediate sections; said intermediate sections and one of said end sections having a series of registering transverse openings therein forming a collecting flue, and having a second series of registering openings forming ashortcircuiting flue, a'series of vertical flues communi eating with said collecting flue and said shortcircuiting' flue, and said intermediate sections having registering openings forming a fuel magazine, a fuel receptacle. and combustion chamher, and an ash pit, and a series of passages extending from said fuel receptacle and combustion chamber to said short-circuiting flue, valve 'ineans associated'with said short-circuiting flue and said collecting flue, and means for 'actuatin said valves, substantially as specified. a

4. A boiler comprising end sections and a plurality of intermediate sections; said intermediate sections and one of said end sections having a series of registering transverse openings therein forming a collecting flue, and having a second series of registering openings forming a short-circuiting flue, a series of vertical, revertible flues each communicating at one end with said collecting flue and at its other end with said short-circuiting flue, and said intermediate sections having registering openings forming a fuel magazine, a fuel receptacle and combustion chamber, and an ash pit, and a series of passages extending from said fuel receptacle and combustion chamber to said short-circuiting flue, valve means associated with said short-circuiting flue and said collecting flue, and means for actu-' ating said valves, substantially as specified.

5. A boiler comprising end sections and a plurality of intermediate sections including apertured forward portions, and water-backedrear portions; said intermediate sections and one of said end sections having in said-water-backed rear portions a series of registering transverse openings forming a transverse'collecting flue, and having a second series of registering transverse openings forming a short-circuiting flue, a series of vertical flues between said water-backed portions each communicating at one end with said collecting flue and at its other end with said short-circuiting flue, and said intermediate sec-.

tions having a registering opening forming a fuel magazine, a fuel receptacle and combustion chamber, and an ash pit, and a series of passages extending from said fuel receptacle and combustion chamber and communicating with said short-circuiting flue and said vertical flues, valve means associated with said short-circuiting flue and said collecting flue, and means for actuating said valves to control the passage of gases and products of combustion through saidflues, substantially as specified.

6. A boiler comprising end sections and a plurality of intermediate sections including apertured forward portions and water backed rear portions; said intermediate sections and one of said end sections having in said water-backed rear portions a series of registering transverse openings forming a transverse collecting flue,

and having a second series of registering transverse openings forming a short-circuiting flue, a series of vertical revertible flues between said water-backed portions each having its intake end communicating with. said short-circuiting flue,

and its outlet end communicating with said collecting flue, and said intermediate sections having registering openings forming a fuel magazine, a fuel receptacle and combustion chamber, and an ash pit, and a series of passages between said Water-backed portions extending from said fuel receptacle and combustion chamber to said short-circuiting flue, valve means associated with said short-circuiting flue and said collecting flue, and means for actuating said valves to control the passage of gases and products of combustion through said flues, substantially as specified.

7. A boiler comprising end sections and a plurality of intermediate sections including apertured forward portions, and water-backed rear portions whose upper front parts extend forwardly beyond their lower parts, said intermediate sections and one of said end sections having in said water-backed rear portions a series of registering transverse openings forming a collecting flue, and having a second series of registering transverse openings forming a short-circuiting flue, a series of vertical, revertiblerflues arranged between said water-backed portions below said collecting and short-circuiting flues, and each having its intake end communicating with said short-circuiting flue, and its outlet end com-' CHARLES W. BRABBEE. 

